arch/arm/mach-omap1/board-voiceblue.c - kernel/msm-4.9 - Gitiles

 /*
  * linux/arch/arm/mach-omap1/board-voiceblue.c
  *
  * Modified from board-generic.c
  *
  * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
  *
  * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */

 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mtd/physmap.h>
 #include <linux/notifier.h>
 #include <linux/reboot.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_reg.h>
 #include <linux/smc91x.h>

 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>

 #include <plat/common.h>
 #include <mach/gpio.h>
 #include <plat/flash.h>
 #include <plat/mux.h>
 #include <plat/tc.h>
 #include <plat/usb.h>

 static struct plat_serial8250_port voiceblue_ports[] = {
 	{
 		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x40000),
 		.irq		= OMAP_GPIO_IRQ(12),
 		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 		.iotype		= UPIO_MEM,
 		.regshift	= 1,
 		.uartclk	= 3686400,
 	},
 	{
 		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x50000),
 		.irq		= OMAP_GPIO_IRQ(13),
 		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 		.iotype		= UPIO_MEM,
 		.regshift	= 1,
 		.uartclk	= 3686400,
 	},
 	{
 		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x60000),
 		.irq		= OMAP_GPIO_IRQ(14),
 		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 		.iotype		= UPIO_MEM,
 		.regshift	= 1,
 		.uartclk	= 3686400,
 	},
 	{
 		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x70000),
 		.irq		= OMAP_GPIO_IRQ(15),
 		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 		.iotype		= UPIO_MEM,
 		.regshift	= 1,
 		.uartclk	= 3686400,
 	},
 	{ },
 };

 static struct platform_device serial_device = {
 	.name			= "serial8250",
 	.id			= PLAT8250_DEV_PLATFORM1,
 	.dev			= {
 		.platform_data	= voiceblue_ports,
 	},
 };

 static int __init ext_uart_init(void)
 {
 	return platform_device_register(&serial_device);
 }
 arch_initcall(ext_uart_init);

 static struct physmap_flash_data voiceblue_flash_data = {
 	.width		= 2,
 	.set_vpp	= omap1_set_vpp,
 };

 static struct resource voiceblue_flash_resource = {
 	.start	= OMAP_CS0_PHYS,
 	.end	= OMAP_CS0_PHYS + SZ_32M - 1,
 	.flags	= IORESOURCE_MEM,
 };

 static struct platform_device voiceblue_flash_device = {
 	.name		= "physmap-flash",
 	.id		= 0,
 	.dev		= {
 		.platform_data	= &voiceblue_flash_data,
 	},
 	.num_resources	= 1,
 	.resource	= &voiceblue_flash_resource,
 };

 static struct smc91x_platdata voiceblue_smc91x_info = {
 	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
 	.leda	= RPC_LED_100_10,
 	.ledb	= RPC_LED_TX_RX,
 };

 static struct resource voiceblue_smc91x_resources[] = {
 	[0] = {
 		.start	= OMAP_CS2_PHYS + 0x300,
 		.end	= OMAP_CS2_PHYS + 0x300 + 16,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(8),
 		.end	= OMAP_GPIO_IRQ(8),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };

 static struct platform_device voiceblue_smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.dev	= {
 		.platform_data	= &voiceblue_smc91x_info,
 	},
 	.num_resources	= ARRAY_SIZE(voiceblue_smc91x_resources),
 	.resource	= voiceblue_smc91x_resources,
 };

 static struct platform_device *voiceblue_devices[] __initdata = {
 	&voiceblue_flash_device,
 	&voiceblue_smc91x_device,
 };

 static struct omap_usb_config voiceblue_usb_config __initdata = {
 	.hmc_mode	= 3,
 	.register_host	= 1,
 	.register_dev   = 1,
 	.pins[0]	= 2,
 	.pins[1]	= 6,
 	.pins[2]	= 6,
 };

 static struct omap_board_config_kernel voiceblue_config[] = {
 };

 static void __init voiceblue_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 }

 static void __init voiceblue_init(void)
 {
 	/* mux pins for uarts */
 	omap_cfg_reg(UART1_TX);
 	omap_cfg_reg(UART1_RTS);
 	omap_cfg_reg(UART2_TX);
 	omap_cfg_reg(UART2_RTS);
 	omap_cfg_reg(UART3_TX);
 	omap_cfg_reg(UART3_RX);

 	/* Watchdog */
 	gpio_request(0, "Watchdog");
 	/* smc91x reset */
 	gpio_request(7, "SMC91x reset");
 	gpio_direction_output(7, 1);
 	udelay(2);	/* wait at least 100ns */
 	gpio_set_value(7, 0);
 	mdelay(50);	/* 50ms until PHY ready */
 	/* smc91x interrupt pin */
 	gpio_request(8, "SMC91x irq");
 	/* 16C554 reset*/
 	gpio_request(6, "16C554 reset");
 	gpio_direction_output(6, 0);
 	/* 16C554 interrupt pins */
 	gpio_request(12, "16C554 irq");
 	gpio_request(13, "16C554 irq");
 	gpio_request(14, "16C554 irq");
 	gpio_request(15, "16C554 irq");
 	set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
 	set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
 	set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
 	set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);

 	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
 	omap_board_config = voiceblue_config;
 	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
 	omap_serial_init();
 	omap1_usb_init(&voiceblue_usb_config);
 	omap_register_i2c_bus(1, 100, NULL, 0);

 	/* There is a good chance board is going up, so enable power LED
 	 * (it is connected through invertor) */
 	omap_writeb(0x00, OMAP_LPG1_LCR);
 	omap_writeb(0x00, OMAP_LPG1_PMR);	/* Disable clock */
 }

 static void __init voiceblue_map_io(void)
 {
 	omap1_map_common_io();
 }

 #define MACHINE_PANICED		1
 #define MACHINE_REBOOTING	2
 #define MACHINE_REBOOT		4
 static unsigned long machine_state;

 static int panic_event(struct notifier_block *this, unsigned long event,
 	 void *ptr)
 {
 	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
 		return NOTIFY_DONE;

 	/* Flash power LED */
 	omap_writeb(0x78, OMAP_LPG1_LCR);
 	omap_writeb(0x01, OMAP_LPG1_PMR);	/* Enable clock */

 	return NOTIFY_DONE;
 }

 static struct notifier_block panic_block = {
 	.notifier_call	= panic_event,
 };

 static int __init voiceblue_setup(void)
 {
 	/* Setup panic notifier */
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);

 	return 0;
 }
 postcore_initcall(voiceblue_setup);

 static int wdt_gpio_state;

 void voiceblue_wdt_enable(void)
 {
 	gpio_direction_output(0, 0);
 	gpio_set_value(0, 1);
 	gpio_set_value(0, 0);
 	wdt_gpio_state = 0;
 }

 void voiceblue_wdt_disable(void)
 {
 	gpio_set_value(0, 0);
 	gpio_set_value(0, 1);
 	gpio_set_value(0, 0);
 	gpio_direction_input(0);
 }

 void voiceblue_wdt_ping(void)
 {
 	if (test_bit(MACHINE_REBOOT, &machine_state))
 		return;

 	wdt_gpio_state = !wdt_gpio_state;
 	gpio_set_value(0, wdt_gpio_state);
 }

 void voiceblue_reset(void)
 {
 	set_bit(MACHINE_REBOOT, &machine_state);
 	voiceblue_wdt_enable();
 	while (1) ;
 }

 EXPORT_SYMBOL(voiceblue_wdt_enable);
 EXPORT_SYMBOL(voiceblue_wdt_disable);
 EXPORT_SYMBOL(voiceblue_wdt_ping);

 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
 	/* Maintainer: Ladislav Michl <michl@2n.cz> */
 	.boot_params	= 0x10000100,
 	.map_io		= voiceblue_map_io,
 	.reserve	= omap_reserve,
 	.init_irq	= voiceblue_init_irq,
 	.init_machine	= voiceblue_init,
 	.timer		= &omap_timer,
 MACHINE_END
	/*
	* linux/arch/arm/mach-omap1/board-voiceblue.c
	*
	* Modified from board-generic.c
	*
	* Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
	*
	* Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*/

	#include <linux/delay.h>
	#include <linux/platform_device.h>
	#include <linux/interrupt.h>
	#include <linux/irq.h>
	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/mtd/physmap.h>
	#include <linux/notifier.h>
	#include <linux/reboot.h>
	#include <linux/serial_8250.h>
	#include <linux/serial_reg.h>
	#include <linux/smc91x.h>

	#include <mach/hardware.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/map.h>

	#include <plat/common.h>
	#include <mach/gpio.h>
	#include <plat/flash.h>
	#include <plat/mux.h>
	#include <plat/tc.h>
	#include <plat/usb.h>

	static struct plat_serial8250_port voiceblue_ports[] = {
	{
	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
	.irq = OMAP_GPIO_IRQ(12),
	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	.iotype = UPIO_MEM,
	.regshift = 1,
	.uartclk = 3686400,
	},
	{
	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
	.irq = OMAP_GPIO_IRQ(13),
	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	.iotype = UPIO_MEM,
	.regshift = 1,
	.uartclk = 3686400,
	},
	{
	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
	.irq = OMAP_GPIO_IRQ(14),
	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	.iotype = UPIO_MEM,
	.regshift = 1,
	.uartclk = 3686400,
	},
	{
	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
	.irq = OMAP_GPIO_IRQ(15),
	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	.iotype = UPIO_MEM,
	.regshift = 1,
	.uartclk = 3686400,
	},
	{ },
	};

	static struct platform_device serial_device = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM1,
	.dev = {
	.platform_data = voiceblue_ports,
	},
	};

	static int __init ext_uart_init(void)
	{
	return platform_device_register(&serial_device);
	}
	arch_initcall(ext_uart_init);

	static struct physmap_flash_data voiceblue_flash_data = {
	.width = 2,
	.set_vpp = omap1_set_vpp,
	};

	static struct resource voiceblue_flash_resource = {
	.start = OMAP_CS0_PHYS,
	.end = OMAP_CS0_PHYS + SZ_32M - 1,
	.flags = IORESOURCE_MEM,
	};

	static struct platform_device voiceblue_flash_device = {
	.name = "physmap-flash",
	.id = 0,
	.dev = {
	.platform_data = &voiceblue_flash_data,
	},
	.num_resources = 1,
	.resource = &voiceblue_flash_resource,
	};

	static struct smc91x_platdata voiceblue_smc91x_info = {
	.flags = SMC91X_USE_16BIT \| SMC91X_NOWAIT,
	.leda = RPC_LED_100_10,
	.ledb = RPC_LED_TX_RX,
	};

	static struct resource voiceblue_smc91x_resources[] = {
	[0] = {
	.start = OMAP_CS2_PHYS + 0x300,
	.end = OMAP_CS2_PHYS + 0x300 + 16,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = OMAP_GPIO_IRQ(8),
	.end = OMAP_GPIO_IRQ(8),
	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
	},
	};

	static struct platform_device voiceblue_smc91x_device = {
	.name = "smc91x",
	.id = 0,
	.dev = {
	.platform_data = &voiceblue_smc91x_info,
	},
	.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
	.resource = voiceblue_smc91x_resources,
	};

	static struct platform_device *voiceblue_devices[] __initdata = {
	&voiceblue_flash_device,
	&voiceblue_smc91x_device,
	};

	static struct omap_usb_config voiceblue_usb_config __initdata = {
	.hmc_mode = 3,
	.register_host = 1,
	.register_dev = 1,
	.pins[0] = 2,
	.pins[1] = 6,
	.pins[2] = 6,
	};

	static struct omap_board_config_kernel voiceblue_config[] = {
	};

	static void __init voiceblue_init_irq(void)
	{
	omap1_init_common_hw();
	omap_init_irq();
	omap_gpio_init();
	}

	static void __init voiceblue_init(void)
	{
	/* mux pins for uarts */
	omap_cfg_reg(UART1_TX);
	omap_cfg_reg(UART1_RTS);
	omap_cfg_reg(UART2_TX);
	omap_cfg_reg(UART2_RTS);
	omap_cfg_reg(UART3_TX);
	omap_cfg_reg(UART3_RX);

	/* Watchdog */
	gpio_request(0, "Watchdog");
	/* smc91x reset */
	gpio_request(7, "SMC91x reset");
	gpio_direction_output(7, 1);
	udelay(2); /* wait at least 100ns */
	gpio_set_value(7, 0);
	mdelay(50); /* 50ms until PHY ready */
	/* smc91x interrupt pin */
	gpio_request(8, "SMC91x irq");
	/* 16C554 reset*/
	gpio_request(6, "16C554 reset");
	gpio_direction_output(6, 0);
	/* 16C554 interrupt pins */
	gpio_request(12, "16C554 irq");
	gpio_request(13, "16C554 irq");
	gpio_request(14, "16C554 irq");
	gpio_request(15, "16C554 irq");
	set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
	set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
	set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
	set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);

	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
	omap_board_config = voiceblue_config;
	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
	omap_serial_init();
	omap1_usb_init(&voiceblue_usb_config);
	omap_register_i2c_bus(1, 100, NULL, 0);

	/* There is a good chance board is going up, so enable power LED
	* (it is connected through invertor) */
	omap_writeb(0x00, OMAP_LPG1_LCR);
	omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
	}

	static void __init voiceblue_map_io(void)
	{
	omap1_map_common_io();
	}

	#define MACHINE_PANICED 1
	#define MACHINE_REBOOTING 2
	#define MACHINE_REBOOT 4
	static unsigned long machine_state;

	static int panic_event(struct notifier_block *this, unsigned long event,
	void *ptr)
	{
	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
	return NOTIFY_DONE;

	/* Flash power LED */
	omap_writeb(0x78, OMAP_LPG1_LCR);
	omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */

	return NOTIFY_DONE;
	}

	static struct notifier_block panic_block = {
	.notifier_call = panic_event,
	};

	static int __init voiceblue_setup(void)
	{
	/* Setup panic notifier */
	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);

	return 0;
	}
	postcore_initcall(voiceblue_setup);

	static int wdt_gpio_state;

	void voiceblue_wdt_enable(void)
	{
	gpio_direction_output(0, 0);
	gpio_set_value(0, 1);
	gpio_set_value(0, 0);
	wdt_gpio_state = 0;
	}

	void voiceblue_wdt_disable(void)
	{
	gpio_set_value(0, 0);
	gpio_set_value(0, 1);
	gpio_set_value(0, 0);
	gpio_direction_input(0);
	}

	void voiceblue_wdt_ping(void)
	{
	if (test_bit(MACHINE_REBOOT, &machine_state))
	return;

	wdt_gpio_state = !wdt_gpio_state;
	gpio_set_value(0, wdt_gpio_state);
	}

	void voiceblue_reset(void)
	{
	set_bit(MACHINE_REBOOT, &machine_state);
	voiceblue_wdt_enable();
	while (1) ;
	}

	EXPORT_SYMBOL(voiceblue_wdt_enable);
	EXPORT_SYMBOL(voiceblue_wdt_disable);
	EXPORT_SYMBOL(voiceblue_wdt_ping);

	MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
	/* Maintainer: Ladislav Michl <michl@2n.cz> */
	.boot_params = 0x10000100,
	.map_io = voiceblue_map_io,
	.reserve = omap_reserve,
	.init_irq = voiceblue_init_irq,
	.init_machine = voiceblue_init,
	.timer = &omap_timer,
	MACHINE_END